Separator for drain-pipes.



. J.- M. MUGARTHY- SEPARATOR FOR DRAIN PIPES.

APPLICATION PILED'JULY13, 1910.

991,522. Patented May 9, 1911.

iiniran srn'rns PATENT carton.

JAMES M. MCCARTHY, OF WALTHAM, MASSACHUSETTS, ASSIGNOR 0F ONE-HALF TOJOHN W. MGMANAMA, OF WALTHAM, MASSACHUSETTS.

SEPARATOR FOR DRAIN-PIPES.

Specification of Letters Patent.

Patented May 9, 1911.

Application filed July 13, 1910. Serial No. 571,722.

To all whom it may concern:

Be it known that 1, Ju ius M. MCCARTHY, of lValtham, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Separators for Drain-Pipes, of which the following is a specification.

The object of the present invention is to provide means adapted for usewith the leader pipes which carry away the rain water drained from theroofs of buildings, particularly such as are located near railway lines,as railway stations, etc., for the purpose of separating such cindersand dust ejected from locomotive engines as have been deposited on theroofs and washed into the drain by the rain water, from the water so asto prevent clogging of the gutters, leader pipes and drains.

The device in which the invention is embodied is adapted to be setat-any point in the course of the downwardly extending pipe systemswherever used for carrying away surface drainage which is liable to bemingled with cinders as above noted, or any other finely divided solidmatter.

It consists of a conduit having means for separating the solid matterfrom the water, and constructed with provisions for permitting the solidmatter to escape outside of the pipe or for removing the solid matterfrom the pipe and conducting it separately to a suitable depository. IIn the accompanying drawings I have illustrated the preferredconstruction of a separating device embodying the essence of myinvention, illustrating as well the manner of its employment.

In the drawings, Figures 1 and 2 represent views as seen from directionsat right angles to each other of a separator embodying my inventionapplied to the water leader of a railway station house. Fig. 3 is anelevation of a device on an enlarged scale showing the same view of thedevice as illustrated in Fig. 2. Fig. 4 is an elevation of the partshown in Fig. 3 as seen from the right of Fig. 3. Fig.5 is alongitudinal section of the separator detached from the leader pipe.Fig. 6 is a section enlarged online 6-6 of Fig. 3. Fig. 7 is a sectionenlarged on line 77 of Fig. 3. Fig. 8 is a section enlarged on line 88of Fig. 5.

Referring to the drawings, (t represents a gutter such as is usuallyplaced at the edge of any roof to catch the rain water drained from theroof. In this drawing the gutter is supposed to be applied to the roofof a railway station house.

6 represents a post supporting the part of the roof which overhangs thestation platform, and c is a leader pipe secured to the post forcarrying away the water drained into the gutter.

Between the gutter a and the leader pipe 0 is an inclined conductor, apart of which is the device in which my present invention is embodied.

The separator itself as shown best in Figs. 3, 4 and 5, is a conduit cl,which is designed to be placed when in use at an inclination, somewhatas shown in these figures, in order to permit a free course of the waterthrough it, without causing the water to overflow at its edges. Theupper side of the conduit is cut away to permit the escape of thecinders,

the out-away part extending between thepoints 6 and f. Across theconduit is a diagonally arranged screen or strainer g, which is joinedto the bottom of the conduit near the upper end thereof, and extendsdiagonally toward the other end, terminating at the end 7 of the openingin the conduit. Across the space between this end of the screen and thesides of the conduit is a second screen 72.. These two screens aresecured to the walls of the conduit 50 as together to form a perforatedpartition crossing the passageway of the conduit, by which particles ofsolid matter are arrested and prevented from being carried by the waterthrough the conduit. The disposition of the partition, however, is suchwith respect to the opening in the upper side of the conduit as topermit the cinders to escape and thus prevent formation of a dam, andclogging of the conduit. The inclination of the conduit is such thatpreferably the screen 71. also extends on a downward slant, whereby thecinders are forced by the flow of the water and their own accumulationtoward the end f of the opening. The screen 9, however, rises about tothe level of the sides 7' at the point where it joins the second screen7, so that the accumulated cinders can easily fall away outside of theconduit.

This separator may be placed at any point where the nature of the leaderpipes permits the insertion of an inclined pipe section. The mostconvenient position for its use is perhaps that illustrated in thedrawings, where is it applied as the connector between the gutter at theeaves of the roof and a leader pipe supported by a post some dis tancefrom the eaves. An elbow connection 72 here leads from the gutter to theseparator, and a similar elbow on the upper end of the pipe 0 isconnected to the lower end of the separator. However, it is notessential that the separator be placed at this point, as it might bearranged at the bottom of the upright leader, and near where the latterdischarges into a drain, or it might be located between two sections ofthe vertical pipe, offset far enough to permit the separator to beplaced between them. 7

While I do not limit myself to any par- .ticular size for the parts ofthe separator, I

have found in practice that a separator in which the conduit portion isabout four inches in diameter andthe screen a foot or fifteen inches inlength, gives perfect satisfaction.

The screen 72. is an important adjunct of the separator, since it causesthe cinders to be separated from the water without clogging theseparator, and without causing any material loss of the water. Thecinders and other solid matter being as previously described carried bythe flow of the water toward the lower end of the screen 9, are arrestedby the screen it and while so arrested are raised in contact with thescreen h by the pressure of the water and other solid particles, to aheight above the sides j of the opening of the conduit, whereby they canfall freely from the conduit. The fact that the screen 9, while beingarranged on a downward slant, is less sharply inclined than theseparator as a whole, is another important feature of the invention andone which difli'erentiates it sharply from other separators. Thisdisposition of the screen causes the solid particles to be removed fromthe water and allows practically all of the water to pass through thescreen without deflecting the stream of water and causing it to overflowthe sides of the opening in the separator. This is due to the fact thatthe gravity velocity of the water caused by the pitch of the conduit isgreater than the gravity velocity corresponding to the pitch of thescreen.

Another important feature of the inven- Gopies of this patent may beobtained for tion is the provision which I have made for the dispositionof the cinders and other solid matter removed from the water. For thispurpose I provide a cinder collector which is a tubular member Zsurrounding the separator either completely or partially, and at leastto a suflicient extent to enable it to catch the cinders and other solidparticles which fall from the screen. At the lower end of the collectoris a conduit or conductor pipe m which extends downwardly and receivesthe cinders which are caught by the collector section Z. If desired thisconductor m may be stopped at the bottom so that it serves not only as aconduit but also as a receptacle for the cinders. Otherwise theconductor may be arranged to discharge into any suitable depository.

I claim,

1. In a water leader a separator for straining particles of solid matterfrom the water, comprising a conduit forming a section of the leader andarranged on a slant, said conduit having its upper side cut away, and ascreen crossing the conduit diagonally from the wall of the conduit nearthe upper end of said cutaway portion to the lower end of the cutawayportion, and a second screen of segmental form crossing the end of thecutaway portion, being joined at its outer edges to the walls of theconduit and at its inner edge to the end of the first-named screen.

2. An automatic separator for purposes of drainage and filtrationcomprising a conduit arranged on a slant having provisions for admissionand discharge of water at its ends and an opening in its upper side, ascreen extending from the lower side across the conduit to the lower endof the cutaway portion of the latter and approximately to the height ofthe side edges thereof, and a second screen closing the end of suchcutaway. portion, and arranged at an abrupt angle with respect to thefirst screen, whereby solid particles carried longitudinally of thefirst screen are arrested by the second screen and caused to rise untilthey pass over the sides of the conduit.

In testimony whereof I have aflixed my signature, in presence of twowitnesses.

JAMES M. MoCARTI-IY.

Witnesses:

JAMES T. CoPsoN, HARRY L. FRENCH.

five cents each, by addressing the Commissioner of Patents, Washington,D. G.

